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astral.sh

https://astral.sh· First analyzed 26 Apr 2026· Updated 26 Apr 2026
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astral.sh
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Mobile

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Hosting Provider

Cloudflare
cloudflare.com

IP Address

172.67.68.3

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

marge.ns.cloudflare.com.colin.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
643 ms10%
Speed Index
836 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
723 KB
50 requests

Image Optimization

Lazy LoadResponsiveVercel Image Optimization
0–49
50–89
90–100

Architecture Stack

Hybrid
⚡ SSG
Frontend
Framework
Next.js
Styling
Tailwind CSS
CMS
WordPress
Infrastructure
Platform
Vercel
CDN
Cloudflare

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

5 Technologies Detected

Meta Frameworks

1
Next.js

Other

1
Lottie

CSS Frameworks

1
Tailwind CSS

Analytics

1
Fathom Analytics

CDN

1
Cloudflare

SEO Analysis

C69/100
20
9
0
Meta Tags12/15
Content8/12
Headings8/8
Technical19/25
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social4/5
Freshness0/4
Mobile1/4
Indexability3/3
A
astral.shastral.sh

Astral: High-performance Python tooling

Astral builds high-performance developer tools for the Python ecosystem: Ruff, ty, and uv, an extremely fast Python package manager, written in Rust.

Title Length39 chars

Recommended: 50-60 chars (~233px / 580px)

Description Length149 chars

Recommended: 120-160 chars

Issues (0)

    9 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    40 URLs

    robots.txt

    Local SEO

    Local Search Readiness

    7/100
    Poor
    2 14 1

    This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

    Sponsored

    AI & LLM Readiness

    D51/100
    Bot Access
    20/25
    Machine Read.
    13/25
    Schema Data
    3/25
    Citation
    15/25

    AI Bot Access

    14/14 accessible
    AI Search
    OAI-SearchBot
    PerplexityBot
    Claude-SearchBot
    Gemini-Deep-Research
    DuckAssistBot
    Training
    GPTBot
    ClaudeBot
    Google-Extended
    Meta-ExternalAgent
    Bytespiderinfo
    Amazonbot
    Applebot-Extended
    CCBotinfo
    Fetch
    ChatGPT-User

    Machine Readability

    llms.txt
    llms-full.txt
    Semantic HTML
    Heading Hierarchy
    blockquotesnav
    Text ratio:1%
    Words:550
    Token eff.:Optimal
    Sections/1K:7.3
    Depth:2/5

    Structured Data

    1 JSON-LD
    WebSite
    sameAs entity links

    Citation Readiness

    Opening Summary24w
    Descriptive Headingsavg 3.8w
    Canonical URL
    Open Graph3/3
    Twitter Card1/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (7)
    AI readiness recommendation preview...
    Upgrade to view recommendations

    Sponsored

    Accessibility

    WCAG 2.1 Compliance

    Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.
    A
    84/100
    13
    Passed
    2
    Critical
    0
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    20/20
    Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
    Forms & Inputs
    15/15
    Verifies form fields have labels, error messages are clear, and inputs are properly associated.
    Color & Contrast
    15/15
    Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
    Keyboard & Focus
    8/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    6/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    1 recommendation
    • •Accessibility recommendation preview...
    Upgrade to view recommendations

    Carbon Footprint

    SWDM v4 · Eco-Score

    Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.
    76/100
    A
    73 mg
    CO₂e / view
    723.2 KB
    Page Weight
    80%
    Cleaner Than
    New Visitor
    84 mg
    vs
    Returning (cached)
    42 mg
    Annual (10K/mo)
    8.8 kg
    Emission Segments
    Data Center
    4 mg
    Network
    22 mg
    Device
    48 mg
    Resource Breakdown
    JavaScript
    586.8 KB
    Images
    11.5 KB
    CSS
    85.3 KB
    HTML
    18.5 KB
    Other
    21.1 KB
    Green Hosting Verified
    Cloudflare
    GWF Verified
    4 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    B

    Security Score

    76%Good
    Static / Informational

    HTTPS

    WAF

    88d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Google Trust Services

    Key Algorithm

    ECDSA (secp256r1) (256 bit)

    Signature

    ECDSA with SHA-256

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    25.04.2026

    Valid Until

    24.07.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    astral.shreleases.astral.sh

    SHA-256 Fingerprint

    18:9B:5B:43:F2:B3:2F:DA:15:B8:35:33:3F:65:30:90:DD:37:9D:38...

    Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    age
    35
    cache-control
    🟡 0s(public, max-age=0, must-revalidate)
    cf-cache-status
    DYNAMIC
    cf-ray
    9f26adc90e4e4aad-SJC
    content-encoding
    ⚡ Brotli(br)
    content-type
    text/html; charset=utf-8
    Good Warning Issue

    Email Infrastructure

    Google Workspace

    Score

    95

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (5)

    alt1.aspmx.l.google.com
    alt3.aspmx.l.google.com
    aspmx.l.google.com
    alt2.aspmx.l.google.com

    +1 more

    Domain Information

    astral.sh

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Privacy policy page linked
    Data Protection Officer mentioned

    Mobile Compatibility

    Viewport & Responsive Test

    Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.
    A
    87/100
    Mobile Friendly1 breakpoint
    Viewport Meta
    The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.
    Responsive Design
    Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.
    Touch Icons
    Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.
    Readable Font Size
    Base font size should be at least 16px on mobile to ensure text is readable without zooming.
    Relative Units
    Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.
    No H-Scroll Risk
    No elements wider than the viewport that would cause horizontal scrolling on mobile devices.
    Tap Targets OK
    Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.
    No Fixed Widths
    No elements with fixed pixel widths that could overflow on smaller screens and break the layout.
    Viewport
    initial-scale=1.0, width=device-width

    Typography & Readability

    Alliance Platt + Alliance Text

    WCAG Partial
    74/100
    Readability
    /30
    22/30

    30px · LH 1.40

    Hierarchy
    /20
    17/20

    3.33x ratio · ✓ H1→H6

    WCAG
    /25
    17/25

    1:1 min contrast

    Performance
    /25
    18/25

    2 fonts · 4 req

    Heading Font

    Alliance Platt

    Sans100px

    Body Font

    Alliance Text

    Sans30px

    Contrast Ratio

    1:1

    9 issues

    Reading Comfort

    ~37 CPL

    Narrow lines
    100px
    h1
    72px
    h2
    48px
    h3
    30px
    p

    ✅ Excellent readability: 30px body text is ideal for all devices.

    ✅ Optimal line spacing: 1.40 ratio (ideal range 1.4–1.6).

    ⚠️ Partial contrast: 9 elements below WCAG AA threshold (min 1.0:1).

    ✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

    ✅ Strong hierarchy: Headlines are 3.3x larger than body text.

    ✅ Lean font stack: 2 font families keeps load times fast.

    Buy on MyFontsFlesch 54

    Color Palette

    5 unique colors
    Dark
    #756c75
    Other· 1.9%
    #f4f5f0
    Background· 80.8%
    #261130
    Primary· 9.100000000000001%
    #d7fe62
    Accent· 7.2%
    #cfd0bd
    Secondary· 1.1%

    Business & Marketing Stack

    1 Tools Detected

    Growing

    Behavior Analytics

    1
    Google AnalyticsFree

    User behavior and product analytics

    1

    Categories

    1

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    22 Resources

    20
    Scripts
    2
    Styles
    0
    Async
    14
    Defer

    Top Script Sources

    local(20)

    Website Identity

    Astral

    Location detected: 🇨🇦 Canadavia ip
    📧 Google Workspaceen

    Sponsored

    Last analyzed: 26 Apr 2026 at 15:39

    Historical Analysis & Change Tracking